EP1955806B1 - Drehkopfübertrager - Google Patents

Drehkopfübertrager Download PDF

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Publication number
EP1955806B1
EP1955806B1 EP08156937A EP08156937A EP1955806B1 EP 1955806 B1 EP1955806 B1 EP 1955806B1 EP 08156937 A EP08156937 A EP 08156937A EP 08156937 A EP08156937 A EP 08156937A EP 1955806 B1 EP1955806 B1 EP 1955806B1
Authority
EP
European Patent Office
Prior art keywords
stator
rotor
housing
rotary transmitter
transmitter according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08156937A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1955806A3 (de
EP1955806A2 (de
Inventor
Roland HÖRL
Heiko Graf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komet Group GmbH
Original Assignee
Komet Group Holding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komet Group Holding GmbH filed Critical Komet Group Holding GmbH
Priority to PL08156937T priority Critical patent/PL1955806T3/pl
Publication of EP1955806A2 publication Critical patent/EP1955806A2/de
Publication of EP1955806A3 publication Critical patent/EP1955806A3/de
Application granted granted Critical
Publication of EP1955806B1 publication Critical patent/EP1955806B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/18—Rotary transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H01F2038/143—Inductive couplings for signals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/65—Means to drive tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/83—Tool-support with means to move Tool relative to tool-support
    • Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially

Definitions

  • the invention relates to a rotary transformer with a stator and a rotor part, each with a stator and a rotor side, mutually facing ends via an air gap separated core part, each with at least one wound on the stator and the rotor side Kempartie energy winding for energy transfer to the transformer , And with pairwise associated, stator and rotor-side coupling windings for the inductive data transmission, which are connected to a transmitting and / or receiving electronics.
  • Rotary transducers of this type are used for example in adjusting tools with external power supply (EP 719 199 B1 . DE 102 00 488 A1 ).
  • the known Drehübertragem area trained coupling windings are provided, which are alternately connected to the transmitting and receiving electronics and arranged for contactless transmission of alternating signals in the immediate region of the primary winding and the secondary winding of the transformer, for example in the winding window or in the region of the leg ends of the core parts.
  • the at least one coupling winding and the energy winding of the stator are directly exposed to the coolant and chip flow and therefore to high wear, which requires frequent time and material-consuming maintenance. This is especially true when using tools of conventional design, which do not have the stator cross-rotor part and the stator is thus exposed to the flow of material.
  • the present invention seeks to develop a rotary transformer, which is protected from unnecessary wear and requires a relatively low maintenance.
  • the stator is arranged in a housing which is composed of a base housing for receiving a transmitting and receiving electronics with connecting cable and a releasably arranged on the main housing removable housing for receiving the energy winding and the at least one coupling winding, wherein between the base housing and the removable housing detachable plug contacts for the preparation of electrical connections are arranged.
  • a housing which is open to the rotor side in the region of the energy winding and the at least one coupling turn to form a housing window.
  • the housing window is expediently closable with a lid, which can preferably be placed and fixed on the housing via a handling system.
  • the removable housing can be completely removed when not in use with a few simple steps, the stator housing remains in the second alternative solution even when not in use in his position and is protected only by a cover against wear.
  • At least the rotor-near winding branches of the stator-side coupling windings and / or the energy winding are provided with a dielectric cover layer.
  • the cover layer can be colored with a color code, so that wear on the outside of a color change can be detected.
  • the cover layer expediently has a wall thickness ⁇ 1 mm, preferably ⁇ 0.5 mm.
  • this arrangement can be used to automatically monitor the state of wear.
  • the coupling windings and / or the energy winding are embedded in a casting compound which simultaneously forms the cover layer.
  • the casting compound and / or the cover layer expediently contains an abrasion-resistant material, which may consist, for example, of admixed ceramic particles.
  • stator part with its core part the energy winding and the at least one coupling winding extends only over a cylinder segment, while the rotor part with its core part, the energy winding and the at least one coupling winding can extend over a solid cylinder.
  • the invention also relates to a machine tool having a machine frame, a motor-driven machine spindle and a tool head detachably arranged on the machine spindle, the machine frame carrying the stator part near the spindle and the tool head carrying the rotor part of the rotary transformer according to the invention.
  • Another wear-reducing measure is that the rotor-side surface of the stator is acted upon by a chip-rejecting fluid flow.
  • a machine tool with automatic tool change also includes a tool magazine, wherein according to the Invention, the tool magazine has at least one place for receiving the removed from the machine frame part of the stator.
  • the in Fig. 1 formed, designed as a fine rotary head tool head 10 consists essentially of a base body 11, a transverse to the axis of rotation 12 of the tool head 10 relative to the base body 11 adjustable, a tool holder for a cutting tool carrying slider 14, at least one disposed within the tool head 10 power consumers in the form of a
  • the tool head 10 can be coupled to the machine spindle 22 and the machine tool 24 with a tool shank 20, projecting axially over the main body 11.
  • stator housing 34 is arranged on a statorfesten holder 40 by means of an adjusting mechanism 42 both in its distance from the rotor and in its rotational position about an axis parallel to the axis of rotation 12 axis adjustable.
  • the stator part 18 extends segment-like only over a partial circumference of about 70 ° of the tool shaft 20 and leaves the majority of the shaft circumference to form a free space 43 for the access of a tool gripper 44 for the automatic tool change.
  • the tool head 10 on the gripper groove 46 is gripped by the tool gripper 44 from the side opposite the stator part and is displaced axially relative to the machine spindle 22 when the tool coupling is released.
  • the stator part 18 has a two-part housing 34, consisting of a base housing 34 'and a change housing 34 ".
  • the base housing 34' is fixed to the stator-fixed holder 40, while the interchangeable housing 34" is secured to the separation point 28 by means of two clamping screws 30 and a connecting pin 31 is releasably secured to the base housing 34 '.
  • the signal processing electronics, the transmitting and receiving electronics and the electrical system for the power supply are arranged on a circuit board 50, which is connected to a through an opening 52 in the base housing 34' cross-cable with the machine control.
  • the interchangeable housing 34 “are an energy winding 76 for the energy transfer and two coupling windings 80 ', 80" for the inductive data transmission to the rotor part 26.
  • the energy winding and the coupling windings are in a casting of synthetic resin with abrasion-resistant additive such. As ceramic particles, embedded and are located in the removable housing 34 "behind a housing window 60.
  • the energy winding 76 and the coupling windings 80 ', 80" are formed via a plug-in electrical connection Separation point 62 releasably connected to the signal conditioning electronics on the board 50.
  • the energy winding 76 and the coupling windings 80 ', 80 are exposed to a flow of material consisting of chips and / or coolant via the housing window 60. This applies in particular to the use of tools of conventional design which do not overlap the stator part 18 Rotor part 26. To protect the stator windings from unnecessary abrasion, the removable housing 34 "can be removed by loosening the two screws 30 in a simple operation without the base housing 34 'must be removed.
  • the housing window 60 is closed by a cover 64 when not in use.
  • the attachment and detachment of the cover 64 can take place with the aid of a tool changer 66 which is equipped with a cover holder 68 ( Fig. 4c and 4d ).
  • the process of placing and removing the lid 64 can thus be automated.
  • the stator part 18 and the rotor part 26 each have a cross-sectionally U-shaped core section 72, 74 and a respective energy winding 76, 78 wound up on the stator side and the rotor-side core section for energy transmission according to the transformer principle.
  • two mutually paired stator and rotor-side coupling windings 80 ', 80 ", 82', 82" are provided, which are connected to the transmitting and / or receiving electronics in the respective component.
  • the core parts 72,74 with their free legs 72 ', 72 ", 74', 74" directly facing each other and separated by the air gap 35 from each other.
  • the energy windings 76, 78 engage in the winding space 84, 86 between the two core limbs and the yoke 72 "', 74"' and are separated from one another in the region of the winding window 84 ', 86' by the air gap 35.
  • a special feature of the invention is that the coupling windings 80 ', 80 "in the stator 18 and the coupling windings 82', 82" are located in the rotor part 26 on the outside of each of the two core legs.
  • stator-side coupling windings 80 ', 80 “have a winding branch 88' close to the rotor and a winding branch 88" remote from the rotor, which are connected to one another via deflection loops 88 '".
  • the stator-side coupling windings 80 ', 80" are led out through openings 90', 90 "through the stator housing 34.
  • the energy winding 76 is guided through a further opening 90 '" through the stator housing 34 to the outside.
  • the rotor-side energy winding 78 lies in the winding space 86 of the rotor-side core section 74 directly opposite the stator-side energy winding 76.
  • the rotor-side coupling windings 82 ', 82 "lie with their winding branch 89 close to the stator directly opposite the rotor-near winding branch 88' of the corresponding stator-side coupling windings 80 ', 80".
  • the coupling windings clamp a partially cylindrical surface on the stator side and a fully cylindrical surface on the rotor side in each case. They are expediently printed on a flexible sheet carrier in the form of printed conductors.
  • the flat material carriers suitably comprise a conductor region lying at ground potential, which is enclosed by the coupling windings 80 ', 80 ", 82', 82".
  • the coupling windings arranged on the outer sides of the core legs 72 ', 72 “, 74', 74" are shielded from the field of the energy windings 76, 78 by the core legs, so that the danger of induced interference signals is largely eliminated.
  • the coupling windings in their gap between the core limbs 72 ', 72 ", 74', 74" and the associated housing 34, 70 are protected against the action of abrasive particle streams.
  • a further improvement in this regard is achieved in that the coupling windings and the energy winding are embedded in a suitable casting compound.
  • the structure of the data transmission links within the rotary transformer is particularly good in Fig. 8 to recognize.
  • the coupling windings 80 ', 80 ", 82', 82” lie opposite one another in pairs with the winding branches 88 ', 89' facing one another and that the stator-side coupling windings 80 ', 80 "have a part-cylindrical surface and the rotor-side coupling windings 82'. , 82 "span a fully cylindrical surface.
  • the invention relates to a rotary transformer, for example, for use in machine tools with adjusting tools.
  • the rotary transformer comprises a stator part 18 and a rotor part 26, each with a stator side and a rotor side, at mutually facing ends via an air gap separated Kempartie 72,74, each with at least one wound on the stator and the rotor side core section energy winding 76,78 for Energy transfer according to the transformer principle, and with pairwise associated stator and rotor-side coupling windings 80 ', 80 ", 82', 82" for the inductive data transmission.
  • the aim of the invention is the development of a Drehübertragers, which is protected from unnecessary wear and requires a relatively low maintenance.
  • the stator part 18 is arranged in a housing 34, which consists of a base housing 34 'for receiving a transmitting and receiving electronics with connection cable as well as a change housing 34 "removably arranged on the base housing 34' for receiving the energy winding 76 and the at least one coupling turn 80 ', 80 "is composed.
  • the removable housing can be completely removed in a few simple steps, if according to the invention between the base housing 34 'and the removable housing 34 "releasable plug contacts 62 are arranged for the preparation of electrical connections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Pens And Brushes (AREA)
  • Machine Tool Units (AREA)
  • Toys (AREA)
  • Eye Examination Apparatus (AREA)
  • Power Steering Mechanism (AREA)
  • Confectionery (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Near-Field Transmission Systems (AREA)
EP08156937A 2005-03-09 2006-02-22 Drehkopfübertrager Active EP1955806B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08156937T PL1955806T3 (pl) 2005-03-09 2006-02-22 Przekaźnik głowicy obrotowej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005011197A DE102005011197B4 (de) 2005-03-09 2005-03-09 Drehübertrager und damit ausgerüstetes Maschinengestell
EP06707153A EP1856705B1 (de) 2005-03-09 2006-02-22 Drehübertrager

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP06707153A Division EP1856705B1 (de) 2005-03-09 2006-02-22 Drehübertrager

Publications (3)

Publication Number Publication Date
EP1955806A2 EP1955806A2 (de) 2008-08-13
EP1955806A3 EP1955806A3 (de) 2008-08-27
EP1955806B1 true EP1955806B1 (de) 2009-04-08

Family

ID=36649784

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06707153A Active EP1856705B1 (de) 2005-03-09 2006-02-22 Drehübertrager
EP08156937A Active EP1955806B1 (de) 2005-03-09 2006-02-22 Drehkopfübertrager

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06707153A Active EP1856705B1 (de) 2005-03-09 2006-02-22 Drehübertrager

Country Status (10)

Country Link
US (1) US8044822B2 (zh)
EP (2) EP1856705B1 (zh)
JP (1) JP4892544B2 (zh)
CN (2) CN101138056B (zh)
AT (2) ATE429023T1 (zh)
DE (4) DE102005011197B4 (zh)
ES (2) ES2323336T3 (zh)
IL (1) IL185711A (zh)
PL (1) PL1955806T3 (zh)
WO (1) WO2006094630A2 (zh)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007208201A (ja) * 2006-02-06 2007-08-16 Nippon Soken Inc 非接触型電力供給装置
JP5324856B2 (ja) * 2008-08-01 2013-10-23 三重電子株式会社 可動部のハーネスレス装置
DE102008055971A1 (de) * 2008-11-05 2010-05-06 Komet Group Gmbh Bearbeitungszentrum mit Drehübertrager für elektrische Energie
WO2010109889A1 (ja) * 2009-03-27 2010-09-30 学校法人東京理科大学 ナトリウムイオン二次電池
DE102009020509A1 (de) * 2009-05-08 2010-11-11 Komet Group Gmbh Werkzeugmaschine mit Maschinenspindel und Werkzeugaufnahme
DE102010007398B4 (de) 2010-02-03 2015-02-12 Hainbuch Gmbh Spannende Technik Arbeitsspindel für eine Werkzeugmaschine
DE102010003338A1 (de) * 2010-03-26 2011-09-29 Komet Group Gmbh Werkzeugmaschine mit Drehübertrager für Daten
DE102011005339A1 (de) * 2011-03-10 2012-09-13 Komet Group Gmbh Drehübertrager für Werkzeugmaschinen
DE102011105306A1 (de) * 2011-06-22 2012-12-27 Robert Bosch Gmbh Tragbares Werkzeug mit drahtloser Messwertübertragung
DE102011080973A1 (de) 2011-08-16 2013-02-21 Komet Group Gmbh Drehübertrager für Werkzeugmaschinen
US8968532B2 (en) 2011-10-06 2015-03-03 Applied Materials, Inc. Electrochemical processor alignment system
WO2013142425A1 (en) * 2012-03-19 2013-09-26 Volcano Corporation Rotary transformer and associated devices, systems, and methods for rotational intravascular ultrasound
GB2512862A (en) * 2013-04-09 2014-10-15 Bombardier Transp Gmbh Receiving device with coil of electric line for receiving a magnetic field and for producing electric energy by magnetic induction
GB2512855A (en) 2013-04-09 2014-10-15 Bombardier Transp Gmbh Receiving device for receiving a magnetic field and for producing electric energy by magnetic induction
DE102014223544A1 (de) * 2014-11-18 2016-05-19 Sauer Gmbh Spindelvorrichtung und Werkzeugmaschine mit Spindelvorrichtung
DE102015212810B4 (de) 2015-07-08 2023-10-19 Sauer Gmbh Vorrichtung zur Erzeugung einer Ultraschallschwingung eines Werkzeugs und zur Messung von Schwingungsparametern
DE102015218030A1 (de) 2015-09-18 2017-03-23 Sauer Gmbh Kopplungssystem zur Verwendung an einer Spindelvorrichtung einer Werkzeugmaschine
JP6493351B2 (ja) * 2016-10-11 2019-04-03 Tdk株式会社 回転型磁気結合装置
TWI617388B (zh) * 2016-12-27 2018-03-11 Cutting processing device
CN214023536U (zh) * 2020-11-09 2021-08-24 汇专机床有限公司 一种超声波无线发射装置
US11979203B2 (en) 2021-05-12 2024-05-07 Rockwell Collins, Inc. Linear induction motor excitation modulation based communication

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DE102008055971A1 (de) * 2008-11-05 2010-05-06 Komet Group Gmbh Bearbeitungszentrum mit Drehübertrager für elektrische Energie

Also Published As

Publication number Publication date
ATE427804T1 (de) 2009-04-15
JP4892544B2 (ja) 2012-03-07
JP2008533706A (ja) 2008-08-21
CN101996761B (zh) 2012-07-04
DE102005011197B4 (de) 2013-03-07
ES2322870T3 (es) 2009-06-30
DE202006020526U9 (de) 2009-03-12
EP1856705B1 (de) 2009-04-15
IL185711A0 (en) 2008-01-06
CN101138056A (zh) 2008-03-05
US8044822B2 (en) 2011-10-25
CN101996761A (zh) 2011-03-30
EP1955806A3 (de) 2008-08-27
ATE429023T1 (de) 2009-05-15
PL1955806T3 (pl) 2009-09-30
DE102005011197A1 (de) 2006-09-14
EP1955806A2 (de) 2008-08-13
DE202006020526U1 (de) 2008-11-06
ES2323336T3 (es) 2009-07-13
US20080180279A1 (en) 2008-07-31
DE502006003405D1 (de) 2009-05-20
WO2006094630A2 (de) 2006-09-14
IL185711A (en) 2012-06-28
CN101138056B (zh) 2012-02-15
EP1856705A2 (de) 2007-11-21
WO2006094630A3 (de) 2007-02-01
DE502006003447D1 (de) 2009-05-28

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